introduction to the internet and world wide web design l.
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Introduction to the Internet and World Wide Web Design. Introduction. This is simple overview of how Internet and the World Wide Web (WWW) works. History of the internet.

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Presentation Transcript
introduction
Introduction
  • This is simple overview of how Internet and the World Wide Web (WWW) works.
history of the internet
History of the internet
  • Late 1960s, ARPA (Advanced Research Projects Agency). Supported by Department of Defense. To share informations within one university.
  • ARPANET. To connect USA universities and organizations to share info and communicate. TCP Protocol.
  • Internet: To connect organizations all over the world. IP Protocol and other protocols added.
history of the www
History of the WWW
  • World Wide Web enables user to see multimedia based document.
  • 1993, Mosaic Browser. It leads to Netscape Navigator.
  • WWW Consortium(W3C) Objective: To make web accessible regardless of lang. and culture.
  • W3C recommendations and standards. (XHTML, CSS,XML)
web historical events
Web Historical Events
  • C and C++ PLs.
  • Java: Web Programming Lang. (Interactive)
  • JVM: Solved partially Browser Portability Problem.
  • Java Technology assists in Network Communication.
  • .NET: Code reusability and multi-lang. applications.
  • Dynamic HTML: Executed on client. Live pages.
  • E-Commerce.
basic concepts
Basic concepts
  • Each machine connected to the Internet has a unique IP address and port number.
  • Using “ping” command we found the following
    • www.google.com 66.102.9.99:80
    • www.yahoo.com 216.109.118.77:80
    • www.just.edu.jo 10.242.1.51:80
    • webmail.just.edu.jo 10.242.1.52:80
    • Your machine is 127.0.0.1 it is unique within itself!
domain name server dns
Domain Name Server (DNS)
  • DNS match each domain name with its IP address
slide8

www.google.com

66.102.9.99:80

Local DNS (at JUST)

National DNS (Amman)

Root DNS (USA, Europe, Asia)

Total 13 DNS worldwide

requesting information
Requesting Information

HUB 1

HUB 2

HUB 3

JUST

Google

HUB 4

HUB 5

HUB 6

HUB 7

HUB 8

HUB 9

returning information
Returning information

HUB 1

HUB 2

HUB 3

JUST

Google

HUB 4

HUB 5

HUB 6

HUB 7

HUB 8

HUB 9

important keywords
Important Keywords
  • DSL
  • NIC
  • ISP
  • Bandwidth
  • ISDN
  • Dial Up Connection
  • URL
  • HTTP
  • Search Engines
  • FTP
  • SMTP
  • Web Server
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